Glenmorangie Two profoundly different whiskies married in implausible harmony, create the rich, plum taste of Glenmorangie Grand Vintage Malt 1991. Aged for 26 years, the fourth release in Glenmorangie's exclusive Bond House No. 1 Collection owes its fruity depths to two rare parcels of 1991 whisky which, ordinarily, would never be brought together. Long matured in bourbon casks, each was then finished for more than a decade – one in oloroso sherry casks for sweetness and spice, the other in burgundy casks for earthy and truffle notes. At first, their characters seem utterly incongruous. Yet, skillfully softened with a hint of whisky aged in new toasted oak, those contrasts unite in a limited-edition single malt whisky astonishingly mellow and deep.